ASVAB – Mechanical Comprehension (MC) Test

The Mechanical Comprehension Subtest measures your knowledge of machines and machine processes. This subtest includes a lot of diagrams of mechanical operations and then questions about those operations. You will also need to have good math skills to score well on this section as you also may be asked to further explain mechanical processes by doing calculations based on math formulas. The computerized CAT-ASVAB features 16 questions that you will have 20 minutes to answer. On the paper version of the ASVAB, you will have 25 questions to answer in 19 minutes.

Here are some sample questions for the Mechanical Comprehension Subtest:

What is the force that is produced when two objects rub against each other?

What is the approximate measurement of normal atmospheric pressure?

What do torsion springs do?

For more questions that you might find on the Mechanical Comprehension Subtest, take our practice test now. Our experts have carefully written questions covering commonly tested areas on the ASVAB to give you the best, most comprehensive test practice. You can also look over our study guides and additional resources for more information on how to improve your score on the ASVAB.

The Mechanical Comprehension Subtest is not part of the AFQT score but it is used to help determine eligibility for certain military jobs. For instance, if you want to rebuild tanks or service aircraft, doing well on this section is vitally important for you. Take our practice test to evaluate your current knowledge and see what areas you need to improve on. You can retake the test as many times as you want and each time you retake it we will reorder the questions.

Don’t forget, taking our practice test won’t just help you build your knowledge, it will also help you feel more relaxed and confident when you take the real ASVAB.